Earth Day is on the way, and Ryan, Luke, and Carly have a plan. If they
manage to collect and recycle 5,000 aluminum cans, they can make enough
money to buy some beautiful flowers for nearby Gilroy Park.

CAN they do it?

Counting the cans gives Ryan, Luke, and Carly -- along with readers
-- a lesson in place value. And facts about recycling throughout the
story will help readers understand how important it is to take care of
the earth.